Apple Acknowledges Microphone Issue With Some iPhone 7 and 7 Plus Models on iOS 11.3 and Later [Updated]

Apple has acknowledged a microphone issue affecting a limited number of iPhone 7 and iPhone 7 Plus models running iOS 11.3 or later.

iphone 7 call
In an internal document distributed to Apple Authorized Service Providers this week, obtained by MacRumors, Apple said affected customers may experience a grayed-out speaker button during phone calls. The issue may also prevent affected customers from being heard during phone calls or FaceTime video chats.

Apple Authorized Service Providers have been instructed to first ask customers to disconnect or power off any Bluetooth headsets or other audio accessories connected to their iPhone to see if that alleviates the problem.

If the speaker button remains grayed out during a call, the service providers have been instructed to run audio diagnostics. Affected devices will display a "device could not detect dock" or "accessory not supported" alert in the diagnostic pane, in which case the service provider can initiate a repair for the iPhone.

If an affected iPhone 7 or iPhone 7 Plus is no longer covered by warranty, Apple says its service providers can request an exception for this particular issue. Apple's document does not specify if the repairs will be completed free of charge, but it seems likely given the circumstances.

While this does not appear to be a widespread problem, there are have been some complaints about microphone issues on iOS 11.3 scattered across MacRumors, Reddit, Twitter, and the Apple Support Communities in recent months.

It's unclear why iOS 11.3 and subsequent software versions are unintentionally disabling microphones on some iPhone 7 and iPhone 7 Plus units. Apple mentions that some of the devices may require a repair, suggesting the software update could somehow be causing a hardware defect, but information is lacking.

Affected customers can schedule an appointment with an Apple Authorized Service Provider or with the Genius Bar at an Apple Store via the Contact Apple Support page: iPhone → Repairs & Physical Damage → Unable to Hear Through Receiver or Speakers → Built-in Speaker → Bring In For Repair.

Apple has not confirmed this issue publicly, but MacRumors has verified the document's authenticity with a reliable source. However, outside of our control, some Apple employees may be unaware of or deny the information. In that event, we recommend escalating your case to a senior AppleCare advisor if possible.

MacRumors has reached out to Apple for clarity on this issue. If and when we hear back, we'll update this article.

Update: Apple appears to have stopped offering that exception as of mid July 2018.

Related Forum: iOS 11

Popular Stories

iPhone 17 Pro Lower Logo Feature 1

iPhone 17 Pro Coming Soon With These 14 New Features

Monday June 30, 2025 1:08 pm PDT by
Apple's next-generation iPhone 17 Pro and iPhone 17 Pro Max are less than three months away, and there are plenty of rumors about the devices. Apple is expected to launch the iPhone 17, iPhone 17 Air, iPhone 17 Pro, and iPhone 17 Pro Max in September this year. Below, we recap key changes rumored for the iPhone 17 Pro models:Aluminum frame: iPhone 17 Pro models are rumored to have an...
A18 Pro Chip

New MacBook With A18 Pro Chip Spotted in Apple Code

Monday June 30, 2025 8:05 am PDT by
Apple is developing a MacBook with the A18 Pro chip, according to findings in backend code uncovered by MacRumors. Earlier today, Apple analyst Ming-Chi Kuo reported that Apple is planning to launch a low-cost MacBook powered by an iPhone chip. The machine is expected to feature a 13-inch display, the A18 Pro chip, and color options that include silver, blue, pink, and yellow. MacRumors...
iPhone Car Key WWDC 2025

Apple Announces 13 Automakers Planning to Offer iPhone Car Keys

Friday June 27, 2025 11:42 am PDT by
In 2020, Apple added a digital car key feature to its Wallet app, allowing users to lock, unlock, and start a compatible vehicle with an iPhone or Apple Watch. The feature is currently offered by select automakers, including Audi, BMW, Hyundai, Kia, Genesis, Mercedes-Benz, Volvo, and a handful of others, and it is set to expand further. During its WWDC 2025 keynote, Apple said that 13...
maxresdefault

Five Features Coming to AirPods Pro 3

Friday June 27, 2025 10:52 am PDT by
Apple hasn't updated the AirPods Pro since 2022, and the earbuds are due for a refresh. We're counting on a new model this year, and we've seen several hints of new AirPods tucked away in Apple's code. Rumors suggest that Apple has some exciting new features planned that will make it worthwhile to upgrade to the latest model. Subscribe to the MacRumors YouTube channel for more videos. Heal...
macbook air spacegray purple

Apple Planning to Launch Low-Cost MacBook Powered By iPhone Chip

Monday June 30, 2025 3:20 am PDT by
Apple is planning to launch a low-cost MacBook powered by an iPhone chip, according to Apple analyst Ming-Chi Kuo. In an article published on X, Kuo explained that the device will feature a 13-inch display and the A18 Pro chip, making it the first Mac powered by an iPhone chip. The A18 Pro chip debuted in the iPhone 16 Pro last year. To date, all Apple silicon Macs have contained M-series...
anker power bank recall

PSA: Anker Recalls Multiple Power Banks Due to Fire Risk

Friday June 27, 2025 4:16 pm PDT by
Popular accessory maker Anker this month launched two separate recalls for its power banks, some of which may be a fire risk. The first recall affects Anker PowerCore 10000 Power Banks sold between June 1, 2016 and December 31, 2022 in the United States. Anker says that these power banks have a "potential issue" with the battery inside, which can lead to overheating, melting of plastic...
Chase Sapphire Reserve Apple Perk Feature

Chase Sapphire Reserve Card Introduces New Perk for Apple Customers

Wednesday June 25, 2025 2:08 pm PDT by
Chase this week announced a series of new perks for its premium Sapphire Reserve credit card, and one of them is for a pair of Apple services. Specifically, the credit card now offers complimentary annual subscriptions to Apple TV+ and Apple Music, a value of up to $250 per year. If you are already paying for Apple TV+ and/or Apple Music directly through Apple, those subscriptions will...
replay all time playlist apple music

Apple Music Debuts All-New Personalized Playlist

Monday June 30, 2025 7:16 am PDT by
As part of its 10-year celebrations of Apple Music, Apple today released an all-new personalized playlist that collates your entire listening history. The playlist, called "Replay All Time," expands on Apple Music's existing Replay features. Previously, users could only see their top songs for each individual calendar year that they've been subscribed to Apple Music, but now, Replay All...

Top Rated Comments

RobaxMan Avatar
94 months ago
They acknowledge it but don’t allow downgrading, only 11.3.1 signed
Hmm
I'm seeing a spike in X sales!
Score: 7 Votes (Like | Disagree)
HacKage Avatar
94 months ago
Not entirely sure whether it is software related, or whether it's more down to phones being of a certain age. The iPhone 7 is riddled with Audio IC problems due to a weakness on the PCB akin to the touch issues seen on the iPhone 6 Plus. The company I work for have a queue of iPhone 7 with Audio IC faults at least 10 deep every single day. I would say this is a more common issue than the iPhone 6 Plus touch issues purely down to the amount of repairs we are seeing booked in.

Save this comment for the future, because I guarantee it that Apple will be forced to offer a repair program for iPhone 7 series with audio issues.
Score: 6 Votes (Like | Disagree)
MrGuder Avatar
94 months ago
And how many people are going to say OK that's the last straw let's upgrade to the iPhone X, win-win for Apple.
Score: 5 Votes (Like | Disagree)
Bacillus Avatar
94 months ago
Well, it's not even about testing for everything in this kind of scenario, but finding devices that might be affected by something when the vast majority of the same type of devices don't seem to be.
OMG it might take 10 guys 30 seconds to test voice quality on each possible device
Score: 3 Votes (Like | Disagree)
yaxomoxay Avatar
94 months ago
I think the most common answer I've seen on these threads is that they can't possibly test for everything BUT one wonders if they only test the new release by powering off/powering on?
I’d say that destroying the mic, requiring a physical fix, is quite a big thing to miss during SQA...
Score: 3 Votes (Like | Disagree)
apolloa Avatar
94 months ago
What a surprise they broke something else..

I do hope they haven’t been using this bug as an excuse not to replace throttlegate batteries!!
Score: 3 Votes (Like | Disagree)